Social conflict is inherent in urban society in general. Social conflict is a historic constant that makes cities the epicenter of revolt in all of its forms. Despite our attempts to systematically classify the varied logics that lay behind existing disparate scales of uprising, e.g. large mass movements, small groups organized around blueprint actions, or individuals that quietly rebelled with daily contempt, to date it has not been possible to bring them all under a common systemic defiance. Political movements vs. social movements, peaceful vs. violent actions, organization vs. spontaneity, etc., these are old dichotomies overcome by the force of the present situation. So, how does conflict come about in contemporary cities? The varied kinds of agitation featured in the current crisis are a good example of the different types of rebellion against public order, the norms that sustain it, and the authorities that implement them. From a demonstration against government cuts to apolitical graffiti somewhere on the urban fringe, from insubordination against mortgage repossessions to the refusal to pay for the use of public transport, from symbolic happenings performed in public spaces to the defense, at any cost, of squatted housing, of neighborhood resistance against evictions or of the opposition to identification raids on undocumented migrants.